- Patients must have NOT received any non-cytotoxic (biologic or targeted) agents, as part of their primary treatment or for management of recurrent or persistent disease; non-cytotoxic (biologic or targeted) agents include (but are not limited to) monoclonal antibodies, cytokines, and small-molecule inhibitors of signal transduction; prior hormonal therapy is allowed; there is no limit on the number of prior hormonal therapies allowed